Spindle and bearing therefor



(No Model.)

G. H. ALLEN. SPINDLE AND BEARING THEBBPOR.

No. 511,719. Patented Dec. 26,1893.l

ilivirnn STATES Perera Fries,

GEORGE II. ALLEN, OF FALL RIVER, ASSIGNOR TO GEORGE DRAPER du SONS, OFHOPEDALE, MASSACHUSETTS.

SPINDLE AND BEARING THEREFOR.-

SPECIFICATION forming part of Letterslatent No. 511,719, dated December26, 1/893.

Application iiled May l2, 1893. Serial No. 4741015. (No model.)

' To all whom, t my concern- Be it known that I, GEORGE H. ALLEN, ofFall River, Bristol county, Massachusetts, have invented an Improvementin Spindles and Bearings Therefor, of which the following description,in connection with the accompanying drawings, is a specication, likeletters and figures on the drawings representing like parts. 0

The pint-les of spindles as now commonly made are either cylindrical orelse they taper, the taper growing smaller from near the whirldownwardly. This class of spindle is usually surrounded by a bolster ofsimilar shape internally, the bolster being mounted looselyin asupporting-case so as. to move laterally therein, and to keep this classof spindle in place during the operation of dofng the bobbin, some sortof a hook or device has always been used to cooperate with the whirl andserve as a stop to prevent the lifting of the spindle during dofting. Inmy efforts to iinprove this class of spindle, I have, for the iirst,reversed the taper of the pintle, t. e., made it to increase in diameterfrom below the whirl toward its lower end, and I have surrounded thisbat-like pintle with a bolster correspondingly tapered internally, butthe said bolster externally may have a sliding it in the upright tubularportion of the supporting-case. The spindle step enters the lower end ofthe bolsterloosely, and is shown as jointed to the bolster, the hookconnection represented being a pin or projection carried by one,entering a slot of the other, so that the bolster may rise in thebolster-case by the action against it of the wedge-like sides of thepintle, as the extremity of the spindle in its gyration moves laterallyon or over the step. The step will preferably be restrained fromrotation by means of a pin or projection from the supporting-caseentering a locking slot in the outer side of the step, a pin carried bythe step entering` slots in the bolster so as to restrain its rotationwith the spindle, the said slots, however, permitting the bolster torise vertically, as will be described, under the action of the spindle.

In my invention the spindle will be lifted somewhat during the doftingoperation, and

the bolster will rise with the spindle, the extent of such movementbeing, however, determined by the looseness between the pin and slotconnecting the bolster and step.

Figure l in elevation and section represents a spindle and bearingtherefor embodying one form of my invention. Fig. 2 shows the bolsterremoved from the supporting-case. Fig. 3 shows the step detached. Fig. Lis a modification of my invention, and Figs. 5 and 6 are respectivelysections below the lines a: and a of Fig. 4.

The bolster-case A having its shank extended through the rail A andseated thereon by the nut A2 is and may be as usual.

The spindle B, shown as having an attached sleeve Whirl B', has abat-like pintle B2, or a pintle tapered reversely to the common form, ora pintle which increases in diameter from at or below the junction ofthe whirl and spindle toward the extremity ot the pintle ot the spindle.

The bolster C is tapered internally upward and inward from its lower endand may be in sections, and referring to Fig. 2, where the bolster isshown as detached, I have represented two such sections, each sectionhaving a slot as 2, in which enters a suitable pin or projection 3, saidpin, in this instance of my invention, being carried by the step D, theacting surface of the step, being extended loosely into the lower end ofthe bolster, being prevented from rotating with the spindle by a pin orprojection et on the supportingcase A entering, as herein shown, asuitable bayonet shaped slot 5 made in the step.

It will be obvious that the bolster cannot rotate because the pin 3 inthe slots 2 will prevent that.

Figs. 4, 5 and 6 show .the modification of my invention, saidmodification consisting essentially of making the bolster C in one piecerather than in two pieces as described of Figs. l and 2.

There the bolster is made in one piece, or as a tube, and has a taperedinterior which grows smaller toward its upper end, as provided for, thenthe said bolster must be put upon the spindle from its upper end beforethe whirl is attached to the spindle.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-

1. A whirl spindle having a pintle which increases in diameter frombelow the whirl toward the lower end of said pintle; an outside bolstersupporting-case; and a suitable step for the spindle; combined with aloose bolster having its internal surface shaped to co-operate with thetaper of and to surround and Iit said pintle at andvbelow the line ofband pull on they whirl, the "exterior ofthe bolster being smooth inorder that it may rise freely vertically within the bolster-case and onthe pintle of the spindle by the action of the spindle within it,substantially as described.

2. A supporting-case; a bolster bearingl therein tapered internally, thedirection of taper being inwardly and, upwardly from its lower end;andan independent step connect ed loosely with said bolster; combinedwith a whirl `spindle having a pintle which is tapered outwardly anddownwardly from below said whirl Atoward the free end of said pintle,

kto operate substantially as described.

3; A supportingcase; a bolster bearing therein tapered internally, thedirection of taper being inwardly and upwardly from its lower end, saidbolster bearing supporting the pintle substantially to its lower end;and a whirl spindle having a pintle which is tapered outwardly anddownwardly from below the whirl substantially to its free end; cornbinedwith a step; means to restrain the ro-` tation of the step, and withmeans to connect the said step and l bolster bearing loosely whereby thebolster bearing is permitted to move vertically for a limited extentinde pendently of the step, as and for the purposes set forth.

4. A whirl spindle having a pintle which increases in diameter frombelow the whirl toward the lower end of said pintle; a bolstersupporting-case; and a step having a substantially smooth top upon whichthe enlarged lower end of said pintlerests; combined withY a bolsterhaving its internal surface -shaped to co-operate with and fit the taperof the spindle from the line of band pull substan- 'tially to'the lowerend of the pintle andl interposed between 'said pintle and the interiorof the said supporting-case loosely, said bolexte'nt in thesupporting-case by or through the action of the pint-le of the spindleas the latter vibrates `or moves laterally upon the ster being free tomove vertically to a limited

